text: /** @file
   *
   *  A brief file description
   *
   *  @section license License
   *
   *  Licensed to the Apache Software Foundation (ASF) under one
   *  or more contributor license agreements.  See the NOTICE file
   *  distributed with this work for additional information
   *  regarding copyright ownership.  The ASF licenses this file
   *  to you under the Apache License, Version 2.0 (the
   *  "License"); you may not use this file except in compliance
   *  with the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   *  Unless required by applicable law or agreed to in writing, software
   *  distributed under the License is distributed on an "AS IS" BASIS,
   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   *  See the License for the specific language governing permissions and
   *  limitations under the License.
   */
  
  #ifndef BALANCER_H_29177589_32F1_4D93_AE4F_1E140EDCC273
  #define BALANCER_H_29177589_32F1_4D93_AE4F_1E140EDCC273
  
  #include <ts/ts.h>
  #include <ts/remap.h>
  #include <string>
  
  // Return the length of a string literal.
  template <int N>
  unsigned
  lengthof(const char(&)[N])
  {
    return N - 1;
  }
  
  struct BalancerTarget {
    std::string name;
    unsigned port;
  };
  
  struct BalancerInstance {
    virtual ~BalancerInstance() {}
    virtual void push_target(const BalancerTarget &) = 0;
    virtual const BalancerTarget &balance(TSHttpTxn, TSRemapRequestInfo *) = 0;
  };
  
  BalancerInstance *MakeHashBalancer(const char *);
  BalancerInstance *MakeRoundRobinBalancer(const char *);
  
  #endif /* BALANCER_H_29177589_32F1_4D93_AE4F_1E140EDCC273 */
  